DE69022488D1 - Retroreflektierende Filme mit Schutzdeckschicht. - Google Patents

Retroreflektierende Filme mit Schutzdeckschicht.

Info

Publication number
DE69022488D1
DE69022488D1 DE69022488T DE69022488T DE69022488D1 DE 69022488 D1 DE69022488 D1 DE 69022488D1 DE 69022488 T DE69022488 T DE 69022488T DE 69022488 T DE69022488 T DE 69022488T DE 69022488 D1 DE69022488 D1 DE 69022488D1
Authority
DE
Germany
Prior art keywords
protective cover
cover layer
retroreflective films
retroreflective
films
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE69022488T
Other languages
English (en)
Other versions
DE69022488T2 (de
Inventor
Lynn E Faykish
Wallace K Bingham
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of DE69022488D1 publication Critical patent/DE69022488D1/de
Application granted granted Critical
Publication of DE69022488T2 publication Critical patent/DE69022488T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/12—Reflex reflectors
    • G02B5/126—Reflex reflectors including curved refracting surface
    • G02B5/128—Reflex reflectors including curved refracting surface transparent spheres being embedded in matrix

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Laminated Bodies (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Road Signs Or Road Markings (AREA)
DE69022488T 1989-06-21 1990-06-20 Retroreflektierende Filme mit Schutzdeckschicht. Expired - Fee Related DE69022488T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US36963089A 1989-06-21 1989-06-21

Publications (2)

Publication Number Publication Date
DE69022488D1 true DE69022488D1 (de) 1995-10-26
DE69022488T2 DE69022488T2 (de) 1996-05-09

Family

ID=23456239

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69022488T Expired - Fee Related DE69022488T2 (de) 1989-06-21 1990-06-20 Retroreflektierende Filme mit Schutzdeckschicht.

Country Status (7)

Country Link
EP (1) EP0404539B1 (de)
JP (1) JPH0363602A (de)
KR (1) KR0172599B1 (de)
AU (1) AU632587B2 (de)
CA (1) CA2019274A1 (de)
DE (1) DE69022488T2 (de)
ES (1) ES2077029T3 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5060981A (en) * 1989-09-19 1991-10-29 Minnesota Mining And Manufacturing Company Transparent overlay for protecting a document from tampering
US5169707A (en) * 1991-05-08 1992-12-08 Minnesota Mining And Manufacturing Company Retroreflective security laminates with dual level verification
US5508105A (en) * 1993-02-16 1996-04-16 Minnesota Mining And Manufacturing Company Thermal print receptive and frangible retrorefelective polymeric sheetings
US5670005A (en) * 1993-02-16 1997-09-23 Minnesota Mining And Manufacturing Company Method for manufacturing improved data display retroreflective sheeting
US5656360A (en) * 1996-02-16 1997-08-12 Minnesota Mining And Manufacturing Company Article with holographic and retroreflective features
JPH10170710A (ja) * 1996-12-12 1998-06-26 Minnesota Mining & Mfg Co <3M> 光再帰性反射シート
US6157486A (en) * 1998-01-13 2000-12-05 3M Innovative Properties Company Retroreflective dichroic reflector
US6024455A (en) * 1998-01-13 2000-02-15 3M Innovative Properties Company Reflective article with concealed retroreflective pattern
KR200459750Y1 (ko) * 2009-07-27 2012-04-13 정용탁 비즈전사효과를 구비한 전사지
BR112016003590B1 (pt) * 2013-08-19 2022-01-18 3M Innovative Properties Company Artigo retrorrefletivo
WO2019084299A1 (en) 2017-10-27 2019-05-02 3M Innovative Properties Company RETROREFLECTIVE ARTICLE COMPRISING RETROREFLECTIVE ELEMENTS COMPRISING PRIMARY REFLECTIVE LAYERS AND SECONDARY REFLECTIVE LAYERS
EP3701299A4 (de) * 2017-10-27 2021-08-25 3M Innovative Properties Company Rückstrahlender artikel mit lokal laminierten reflektierenden schichten
US11493674B2 (en) 2017-10-27 2022-11-08 3M Innovative Properties Company Retroreflective article comprising embedded reflective layers

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3188265A (en) * 1957-11-12 1965-06-08 Minnesota Mining & Mfg Packaging films
NL257502A (de) * 1959-11-02
US3188266A (en) * 1963-09-03 1965-06-08 Minnesota Mining & Mfg Interface bonding of polymers and product thereof
US3551025A (en) * 1969-03-28 1970-12-29 Minnesota Mining & Mfg Highly flexible reflex reflecting constructions
US3801183A (en) * 1973-06-01 1974-04-02 Minnesota Mining & Mfg Retro-reflective film
US4099838A (en) * 1976-06-07 1978-07-11 Minnesota Mining And Manufacturing Company Reflective sheet material
AU581288B2 (en) * 1985-03-01 1989-02-16 Minnesota Mining And Manufacturing Company Flat transparent top coat for retroreflective coating
US4721649A (en) * 1985-05-08 1988-01-26 Minnesota Mining And Manufacturing Company Retroreflective sheeting
US4663213A (en) * 1985-11-18 1987-05-05 Minnesota Mining And Manufacturing Company Transparent multi-layer cover film for retroreflective sheeting

Also Published As

Publication number Publication date
AU632587B2 (en) 1993-01-07
EP0404539B1 (de) 1995-09-20
JPH0363602A (ja) 1991-03-19
EP0404539A3 (de) 1991-02-20
ES2077029T3 (es) 1995-11-16
DE69022488T2 (de) 1996-05-09
AU5766890A (en) 1991-01-03
KR0172599B1 (ko) 1999-05-01
CA2019274A1 (en) 1990-12-21
EP0404539A2 (de) 1990-12-27
KR910000354A (ko) 1991-01-29

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee